One Ok Rock (stylized as ONE OK ROCK) is a Japanese rock band formed in 2005, composed of Taka, Toru, Ryota, and Tomoya. Originally a five piece band, guitarist Alex left the group in 2009.
Members:
Toru (山下 亨 Yamashita Tōru?, born December 7, 1988 in Osaka) is the leader and guitarist of the group. He also contributes some vocals. He was previously a member of the hip-hop dance group Heads with Ryota.
Taka (森田 貴寬 Morita Takahiro?, born April 17, 1988 in Tokyo) is the main vocalist of the group. Prior to debuting with One Ok Rock, he was a member of the boy band NEWS. He is the son of singers Shinichi Mori and Masako Mori and the older brother to Hiroki, the singer of My First Story.
Ryota (小浜 良太 Kohama Ryōta?, born September 4, 1989 in Osaka) is the bassist of the group. He was also previously a member of the hip-hop dance group Heads with Toru.
Tomoya (神吉 智也 Kanki Tomoya?, born June 27, 1987 in Hyogo) is the drummer of the group.
Former members
Alex (鬼澤アレクサンダー礼門 Onizawa Alexander Reimon?, born March 19, 1988 in San Francisco) was the lead guitarist of the group along with rhythm guitarist Toru, until he left in May 2009 after being arrested on charges of groping, Toru then took Alex's place as lead guitar.
Tomo (小柳友 Koyanagi Yuu), born August 29, 1988 in Tokyo) was the original drummer of the group since before their official debut. He left the band in June 2006 to follow an acting career.